Home / 1,919,465.40-2,880,191.70-783,060.60

Finding the Fourth Proportional to 1,919,465.40, 2,880,191.70 and 783,060.60

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Solution

The fourth proportional to 1,919,465.40, 2,880,191.70 and 783,060.60 is: 1,174,996.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,919,465.40 : 2,880,191.70 = 783,060.60 : x
  2. Step 2: Convert to fraction form
    1,919,465.40/2,880,191.70 = 783,060.60/x
  3. Step 3: Cross multiply
    1,919,465.40x = 2,880,191.70 × 783,060.60
  4. Step 4: Simplify right side
    1,919,465.40x = 2,255,364,640,717.02
  5. Step 5: Solve for x
    x = 2,255,364,640,717.02/1,919,465.40
  6. Step 6: Final answer
    x = 1,174,996.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.